Mold for concrete silos and the like.



W. A. DOYLE.

MOLD FOR.CONCRETE SILOS AND THE LIKE.

APPLICATION FILED JUNE 8, 1915.

1,159,366. Patented Nov. 9, 1915.

2 SHEETS-SHEET 1.

&6 7 74 .9 4 c3 5 5 "70 W. A. DOYLE.

MOLD FOR CONCRETE SILOS AND THE LIKE.

APPLICATION FILED JUNE 8, 1915.

1.,159,366. Patented Nov. 9, 1915.

2 SHEETSSHEET 2.

'- ares .rrnn orator.

WILLIAM A. DOYLE, OF DALLAS, TEXAS, ASSIGNOR TO DAYLE D. DOYLE, OF DALLAS, TEXAS.

MOLD FOR CONCRETE SILOS AND THE LIKE.

Application filed June 8, 1915.

I To all whom it may concern:

Be it known that I, l/VILLIAM A. DOYLE, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Molds for Concrete Silos and the like; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements 1n plastic working apparatus and more particularly to a mold for constructing concrete silos and the like, the object of the invention being to provide a device of this class which although comparatively simple and inexpensive, will be highly efficient in operation and will possess a number of advantageous characteristics.

With this general object in view, the invention resides in certain novel features of construction and in the unique combinations of parts hereinafter fully described and claimed.

In the accompanying drawings which constitute a part of the application, Figure l is a top plan view of a mold showing the supporting standards thereof in horizontal section; Figs. 2 and 3 are vertical sections as seen along the planes indicated by the lines 22 and 33 of Fig. 1; Figs. 4 and 5 are perspective views of the inner and outer shell sections; and Fig. 6 is a. perspective of one of the yoke members to be described.

In-describing the invention, I shall refer to these drawings by similar reference characters placed on corresponding parts throughout the several views, the numerals 1 and 2 indicating respectively the outer and inner cylindrical shells of the mold proper, while 3 has reference to an upright shaft structure.

The shell 1 comprises a plurality of arcuate overlapped plates at to whose upper and lower edges metal straps 5 are riveted or otherwise secured, the ends of these straps being bent laterally outward to provide ears 6, the ears of the several plates a either abutting or being disposed adjacent those of adjoining plates, whereby bolts or the like 7 may be passed through such ears to rigidly yet detachably and a-djustably connect the severalplates or sections.

The inner shell 2 is constructed in the Specification of Letters Patent.

Patented Nov. 9, 1915.

Serial No. 32,905.

same manner as the outer shell 1, with the exception that the reinforcing straps 5 of said shellQ are disposed on the inner sides positions. To accomplish these ends, the upright shaft structure '3 has been provided, said structure including a plurality of upright standards 8 which rise either contiguous to the inner side of the inner shell 2, or adjacent the outer side of the shell, 1, according to the judgment of the operators constructing a silo or the like with the improved apparatus. In most cases, however, it is preferable to dispose the column or shaft 3 within the innermost shell as shown in the drawings.

Leading from the upper edges of the two shells l and 2 and preferably connected thereto through the instrumentality of certain of the bolts 7 and 7, are the two series of inclined links 9 and 9 whose upper ends are detachably secured by lag screws or the like 10 to the several upright standards 8, whereby when one section of the silo has been formed, the screws 10 or other anchoring members used in place thereof, may be removed forthe purpose of allowing the shells 1 and 2 to be raised, and may then be again applied to secure said shells in their adjusted position. Before such vertical adjustment of the inner and outer shells may be made, however, it is necessary to so actuate certain of the bolts 7 and 7 as to expand the outer shell and contract the inner shell, thus bringing these parts out of contact with the completed portion of the wall. When the formhas been raised to the proper extent, however, the bolts in question are again adjusted to force the lower edge portions of the two shells into frictional contact with the upper edge portion of the completed wall section. Furthermore, before the inner and outer shells of the mold may be respectively contracted and expanded for purposes of adjustment, it is necessary to remove transverse yoke members 11 connecting the upper edges thereof and secured to the standards 8, and additional yoke members 12 interposed between the members 11, the members 12 being merely in the form of flat metal bars overlying the upper edges of the inner and outer shells and having their ends bent downwardly into contact with the remote sides thereof, while the yoke members 11 are in the form of angle iron bars having substantially V-shaped notches 13 in the free edges of their upright flanges, receiving the upper edges of the aforesaid shells. The ends of the horizontal flanges of said angle iron bars are slit transverselyand bent laterally, whereby to provide a plurality of ears 14:, the latter being disposed in the same planes in which the aforesaid upright flanges are located. It is through these ears 1t,'that lag screws or the like 15 are passed, these screws being driven into the standards 8 whereby to so anchor the members 11 as to space the inner shell from said standards a distance sufiicient to allow said shell to be contracted as above specified, and to retain both shells in properly spaced relation.

IVith the parts in the positions just described, the inner ends of the horizontal flanges of the angle iron yoke members 11 abut the outer edges of the standards 8 and thus prevent the outer ends of said members from swinging upwardly until the screws 15 are removed, this being very efiicient construction although very simple.

Although the shape thereof is not absolutely essential to the proper working of the device, the notches 13 previously described as of substantially V-shaped contour, are preferably in this form since proper reception of the edges of the two shells is facilitated by such configuration.

From the foregoing description, taken in connection with the accompanying drawings, it will be evident that very simple and inexpensive construction has been provided for the attainment of the desired ends, yet that the improved mold will be very efficient in operation and Will possess a number of advantageous features.

I claim 1. In a mold of the class described, the combination of a plurality of upright standards, a plurality of inclined links connected at their upper ends thereto for vertical shifting thereon, an inner mold member connected to the lower end of said links, additional inclined links connected at their upper ends. to the standards for vertical shifting thereon, an outer moldmember connected to the lower ends of said additional links, and means for spacing the inner and outer mold members.

In a mold of the class described, the

combination of inner and outer mold mem- V bers, standards rismg contiguous to one of said members, fastenings projecting laterally from said standards, a plurality of ms clined links having their lower ends connectedto said mold members and their upper ends engaged with said fastenings, whereby the members are supported,- and means for spacing said members.

3. In a mold of the classdescribed, apluinto the standards, whereby to connect the so links to the standards for vertical shifting thereon, an inner shell connected and supported by the lower ends'o'f certain of said 7 links, an outershell connected to andsupported by the lower ends of certain of said links, an outer shell connected to and supported by the lower ends of the other links, and means for spacing theinner and outer shells. i

4-. In a mold ofthe class described, the

combination of inner and outer continuous shells composed of sections shiftable end wise with respect to each other, adjusting devices uniting the contiguous ends of adjacent sections to permit the shells to be expanded and contracted, a series of up right standards slightly spaced'from one of the shells, two series of inclined links having their lower ends connected to the shells and their upper standards for vertical shifting thereon, and means for spacing the shells from each other and from said standards. I

5. In a mold of the class described, the combination of inner and outer continuous shells composed of adjustable sections shif able endwise' with respect to each other, laterally projecting ears' projecting from the sections of the shells adjacent the ends of said sections, adjusting bolts uniting the ears on said adjacent sections, two series of 1ncl1ned lmks having their lower ends p1v-" oted on said bolts and their upper ends, disposed contiguous to said standards for vertical shitting thereon, and means forspacing theshells from each other and from said standards.

6. In combination, inner and outer upright mold plates, a standard contiguous to one of said plates, an angle iron yoke bar having notches in the free edge of its upright flange receiving therein the upper edges of said plates, one end of the horizontal flange of said bar being strucklaterally and disposed in the plane of the upright flange to form an ear, and a fastener passing through said ear into the standard. I

7. In a mold of the class described, the

combination of inner and outer shells,

spaced standards rising contiguous to one ends connected to the shell, means supporting the shells from the my hand in presence of two subscribing Witstandards for vertical movement, and a nesses. plurality of yoke bars removably pivoted to the standards and having notches in their 5 loWer edges receiving the upper edges of Witnesses:

the shells therein. T. A. SANDERS, In testimony whereof I have hereunto set D. D. DOYLE.

WILLIAM A. DOYLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

